JobsBackendStaff Software Engineer, Backend (Cost Engineering)
Affirm

Affirm

·

Backend

Staff Software Engineer, Backend (Cost Engineering)

RemoteLeadPosted Aug 17, 2026
PythonAWSSnowflakeKubernetesSparkTerraformMySQLKotlin+18 more

About this role

Lead cost visibility and optimization across Affirm's cloud and AI infrastructure. Design tooling, automation, and processes that scale cost governance across multi-cloud and multi-AI-vendor environments. Set technical direction for a small, high-leverage team at the intersection of finance, infrastructure, and data engineering.

Must have

8+ years designing, developing and launching backend systems at scale

Extensive track record with highly available distributed systems

Experience with FinOps or cost-visibility platform building

Track record building automation that turns manual cost-review into self-service systems

Hands-on experience with cloud billing data at scale and complex SQL

Experience delivering major features or deprecating functionality through technical plans

Strong verbal and written communication skills for global collaboration

Technologies

PythonSQLAWSSparkKotlinGitDockerRESTLinuxJiraMySQLTerraformMicroservicesCloudJSONGrafanaPrometheusData engineeringSnowflakeAIKubernetesMonitoringCI/CDLLMsBashFinOps

Responsibilities

Set technical strategy for your team on a year-long time scale

Collaborate across teams with product management, design and analytics

Act as force-multiplier through technical solutions and operational processes

Own team operations and availability with monitoring, triage, playbooks and alerting

Foster culture of quality and ownership through code review and design standards

Develop talent on your team through feedback, guidance and leading by example

Design tooling, automation and processes that scale cost governance

Influence cost strategy with infrastructure and platform leaders across the org

Turn ambiguous spend questions into durable systems and self-service tooling

Benefits

Health insuranceDental insuranceVision insuranceEmployee share purchase planPaid vacationWellness allowanceHome office allowanceFlexible hoursCompetitive salaryStock optionsRemote work

Amenities

100% subsidized medical coverage for you and dependentsFlexible spending wallets for technology, food, lifestyle and family forming expensesCompetitive vacation and holiday schedulesESPP enabling share purchase at discountMonthly stipends for health, wellness and tech spending

Recruitment process

1

Small high-leverage team with outsized influence on company cost thinking

2

Operates severity framework mirroring SEV0-3 incident model mapped to dollar impact

3

Owns visibility and alerting with partner teams owning remediation

4

Works across AWS resource waste, tagging strategy and AI/LLM spend

5

Pay grade P, equity grade 7

6

New employees typically start at beginning of pay range

7

Posting is for an existing vacancy

8

Remote role open only to candidates in specific Canadian provinces

9

Company is remote-first with majority of roles remote